As age continues to grow, many women will appear skin sagging sagging wrinkles and other conditions, which is caused by skin aging, many people will feel particularly distressed, in fact, want to make the skin become firm and moist again, hyaluronic acid is a very good choice, then it is good for the skin? 1, hyaluronic acid, also known as hyaluronic acid, often seen in skin care products, can play a hydrating and moisturizing effect on the skin, but also improve the elasticity of the skin to help lock the water, so that the skin becomes smooth and elastic, so it is very good for the skin. 2, according to the different parts of the injection, each time with one to several, it is not recommended to play too much (need to fill more can be fat grafting). 3, hyaluronic acid is very safe. With the case to be careful, such as pregnant women or liver function is not normal, allergic to hyaluronic acid and other people are not able to use, so before playing hyaluronic acid must consult a doctor can not be used arbitrarily. Before the injection to avoid skin infection must be thoroughly clean the skin, after the injection to let the facial muscles to maintain a state of relaxation, can not do too much expression, and also avoid contact with high temperature, otherwise it will affect the effect.